What do you think would happen if the AV node could no longer do it’s job? Explain how this would affect the contraction of the heart and movement of blood

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;